Gundlach - Positive Drain Hole Protector

This patented clear plastic drainage disc is intended to be placed around a drainage opening in a shower floor. It is designed to be placed between the floor pan and the mortar placed on the floor pan. The ribs on the Positive Drain Hole Protector allow water to drain to the drain holes in the drain receiver. It helps prevent water from getting lodged between the shower pan liner and the mortar bed. The inner and outer diameters of the disc are perforated to allow customization based on the size of the shower drain.